Product Metrics & Prioritization
AARRR Metrics: A Practical Guide for Founders
A practical guide to AARRR metrics, with clear formulas, cohort definitions, a hypothetical SaaS case study, and origina...
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Heemang Parmar
CS engineer and IIM Lucknow MBA. Built products across enterprise and AI for 10+ years. Founded ProductOS to give every PM and founder the leverage of a full product team. Writes about AI product development, PRDs, and building with agents.
Articles by Heemang
AI Engineering in Production
Jev and the unbundling of AI: why agents need a decision layer
Jev is not another chatbot. It is a decision model built to return typed judgments instead of prose. Here is what that c...
Idea to MVP
How to build an MVP: the 2026 playbook
A practical 2026 playbook for building an MVP: pick one problem and one user, cut scope hard, define success, use AI to...
AI-Native Way of Working
What AI-native development actually means
AI-native development means building your product process around AI as the default doer, not bolting a chatbot onto the...
AI for Product Managers
How to use ChatGPT as a product manager (with prompts)
Copyable ChatGPT prompts for the PM tasks that eat your week: user research synthesis, PRD drafts, competitive analysis,...
Product Strategy
The Complete SaaS Journey: From First Problem to Compounding Revenue
Most SaaS companies do not have a growth problem. They have a lifecycle problem hiding in the handoffs between product,...
Idea to MVP
How to build an app with AI: a 2026 walkthrough
A concrete, step-by-step 2026 walkthrough for building an app with AI, from a one-paragraph spec to a deployed product,...
AI for Product Managers
11 AI tools every product manager should use in 2026
The 11 AI tools every product manager should use in 2026, from research and PRDs to prototyping and analytics, with what...
AI for Product Managers
AI in product management: a complete 2026 workflow
A hands-on 2026 guide to AI product management: the end-to-end workflow across discovery, PRDs, prioritization, specs, a...
PRD & Product Specs
How to write a PRD: the complete 2026 guide
A practical, step-by-step guide to writing a product requirements document in 2026, covering the real sections a PRD nee...
Product Metrics & Prioritization
RICE prioritization: a practical guide with examples
A practical guide to RICE prioritization: what Reach, Impact, Confidence, and Effort mean, the scoring formula, a worked...
Product Metrics & Prioritization
A product roadmap template that survives real teams
The product roadmap template that survives real teams is Now / Next / Later with outcome-based cards, not a dated Gantt...